The struggling economy has slimmed down the salaries and bonuses of so many Wall Street fat cats that state coffers are taking a huge hit.

State revenue figures obtained by The Post show an unexpected shortfall of at least $200 million in the current fiscal year, which was supposed to end in the black, sources said.

About $130 million of that is due to smaller than expected income-tax collection — a vast majority of which would have been from the pockets of Wall Street bankers, the sources said.

It likely will force Gov. Cuomo to cut spending further before the current fiscal year ends or use budget gimmicks to “roll’’ the deficit into the new one, adding to next year’s deficit.

“It’s the Wall Street slowdown. You can feel it hurting the entire state,’’ said one fiscal expert.

Taxes paid on Wall Street earnings have made up a massive 20 percent of New York’s $40 billion personal income-tax collections in recent years.

“A lot of the Wall Street people are really scared and worried,” said another source.

“They know their incomes are coming down because of the bonus cuts. They know thousands more may be fired. They’re worried about Europe, which they think could collapse, and they’re being demonized by the Occupy morons, who are being encouraged by the president.”

Wall Street has lost 20,000 jobs since January 2008 — and income has also been slashed.

Bonuses for senior executives are expected to be down 30 percent to an average of $100,000, according to the consulting firm Johnson Associates.

Also, state Comptroller Tom DiNapoli warned last month that Wall Street bonuses could be down sharply in 2012 and that nearly 10,000 securities-industry workers may lose their jobs.

The shortfall — which comes as the state faces a $2.5 billion gap in its next fiscal year, starting April 1 — will be part of Cuomo’s budget forecast to be released in the next two weeks.

The state’s bean counters began seeing the unexpected revenue drop-off around mid-summer — as the hoped-for recovery from the Great Recession never happened.